Home / 28,190.30-42,260.27-10,672.43

Finding the Fourth Proportional to 28,190.30, 42,260.27 and 10,672.43

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Solution

The fourth proportional to 28,190.30, 42,260.27 and 10,672.43 is: 15,999.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190.30 : 42,260.27 = 10,672.43 : x
  2. Step 2: Convert to fraction form
    28,190.30/42,260.27 = 10,672.43/x
  3. Step 3: Cross multiply
    28,190.30x = 42,260.27 × 10,672.43
  4. Step 4: Simplify right side
    28,190.30x = 451,019,508.69
  5. Step 5: Solve for x
    x = 451,019,508.69/28,190.30
  6. Step 6: Final answer
    x = 15,999.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.